Robinair TIF9055 Programmable Charging/Recovery Meter The TIF Programmable Charging/Recovery Meter allows automatic charging or recovery operations in a compact, completely portable, battery powered design with a full 220 pound or 100 kilogram capacity Three display modes - lbs./oz., decimal lbs.,and kilograms; high resolution - 0.2 oz., .010 lbs., and 4 grams; accuracy +/- 0.5% Advanced charge and recovery modes - uses tare weight and maximum capacity of cylinder to calculate maximum charge/recovery available User programmable memory for up to 99 different stored values; 'repeat' charge feature; can be used with all refrigerants Features: 30 hr battery life, 500 PSI max. solenoid operating pressure, 32F to 120F (0C to 49C) operating temp, 1/4 inch MFL inlet/outlet ports with 1/2 inch ACME adapters, and blow molded case